Shirtless Justin Bieber, 20, appears to sip beer as he parties with scantily clad women on a yacht in Miami

He was said to be back with on-off girlfriend Selena Gomez just last month, after the pair were spotted gallivanting around Hollywood on various romantic outings.

But on Thursday Justin Bieber was spotted partying with a pair of scantily clad women on a yacht in Miami Beach, Florida.

The 20-year-old pop star made sure to be shirtless for the occasion, as always, as he appeared to sip from a beer bottle even though the legal drinking age in Florida is 21.

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Is that a beer? Justin Bieber, 20 appeared to sip from a Corona while on a yacht in Miami, Florida

Party time: The singer didn't care who saw him as he whipped his shirt off for some early Fourth Of July celebrations

Heavily muscled men were seen unloading cases of Corona beer and rosé from the trunk of a car and carrying the alcohol on deck of the yacht Bieber was partying on.

The pop star was later seen holding a suspicious looking bottle in his hands as he sat shirtless on deck of the vessel.

Earlier this year, in January, Bieber was arrested and charged with a DUI while drag racing in Miami, the same city he was partying in on Thursday.

Legalities: The legal drinking age in Florida is 21

Relaxing: The star enjoyed the sunshine as he sat on the vessel

Fun in the sun: Two women in bikinis were seen boarding the yacht with Bieber

Steady there: The 20-year-old held onto his hat as he shared a chat with a pal

The
Boyfriend singer wore floral patterned baggy shorts and a fedora as he
sported, appropriately enough, a pair of yachting shoes.

When
Bieber arrived to the yacht he had yet to take off his white T-shirt, but the fully
clothed appearance was short-lived as he quickly whipped his top off
while on deck of the vessel.

One of the beauties on deck was attired in a nude bikini with a white mesh top as the other opted for a red one-piece with two 'X' markings strategically placed over her chest.

Loading up: Some men were seen loading cases of beer, wine, and soft drinks onto the yacht

Light load: One muscled worker carried a case of Corona and a bottle of orange juice on deck

Celebration: One man could be seen carrying a case of Rose on board

Transporting: The beverages were seen being carried on a mini truck

Yacht life: Bieber enjoyed a day in Miami Beach with some friends and a pair of scantily clad ladies on Thursday

The night before saw Bieber and his pal Khalil partying at Dream nightclub, which extended over into the wee hours of Thursday morning, according to TMZ.

As the pair left the establishment they were surrounded by fans clustered around their SUV.

The gossip website posted a video of Khalil inexplicably saying to members of the crowd 'That's how a n**** gets shot' as he made his finger into the shape of a gun.

Cooling off: The Baby singer displayed his muscular body while shirtless on deck

Cheers! Bieber and his pal looked to be having a good time

Tired? The star was out partying into the wee hours of Thursday morning before his yacht day

Looking out: Bieber let his gaze drift over the sea

Soaking up the sun: The Never Say Never hitmaker looked to be having a great time relaxing

All aboard! Bieber texted on his phone as the yacht revelry surrounded him

His latest
outing comes after, according to TMZ, police were called to the singer’s
home in the early hours of Tuesday morning because Bieber had been
throwing a star-studded party, which he shared several photos of on his
social media sites.

The
website reports that the Beverly Hills Police Department showed up at
Bieber’s condo complex after receiving a complaint of loud music.

TMZ claims that police spoke to someone at the home who was not Bieber, but the star obliged and turned down the volume.

Prepared: Both women looked ready for a day on the sea

Escort: Bieber was shown the way by some heavily muscled men

Beach wear: The star sported some baggy shorts for the day of yachting

All aboard: One of the women stepped onto the vessel as she was greeted by the crew

Unfortunately there was more noise pollution that Bieber – who was partying with Floyd Mayweather, Tyga, Tyrese and Johnny Manziel – couldn’t control.

A representative of Justin Bieber has been contacted by MailOnline.

Nice to meet you! The pop star was greeted on deck

Quite the entrance: The Boyfriend singer lifted up his fedora as he said hello to a friend

Also at the party were Kylie Jenner's best friend Anastasia Karanikolaou and Chantel Jeffries, who was infamously by Bieber’s side when he was arrested for a DUI in January.

Although Justin is said to be back with on/off girlfriend Selena Gomez, Chantel was seen leaving his apartment on Thursday, and he was spotted cuddling up to another mystery woman over the weekend.

No shirt: Justin displayed his numerous tattoos with his shirt off

Pals: Justin's friend Khalil Sharieff also joined him for his July 4 celebrations on a yacht in Miami